Author: Paul
Date: 17:43:18 01/24/01
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On January 24, 2001 at 19:55:57, Dieter Buerssner wrote: >On January 24, 2001 at 11:08:22, Paul wrote: >>> 6r1/2rp1kpp/2qQp3/p3Pp1P/1pP2P2/1P2KP2/P5R1/6R1 w - - > >>I know it's meant for Leonid, but I find a mate in 15 ... and this might >>just be too deep for Leonid. Is this true? > >I also get a mate in 15. Sorry, I did not follow all the discussions. >Leonid asked for a mate deeper than in 6 moves from an actual game. >I was not aware of any restrictions on the depth. No, I'm sorry, I shouldn't have said anything, but I believe his program works for mates <=13. >But even here I failed, because it seems, that the position I sent was >never on the board, and probably was some position considered in post >analysis of an actual game. However it was a nice test, this is what I found (with fastest ext settings): 00:47 WM15 1. Rxg7+ Rxg7 2. Rxg7+ Kxg7 3. Qe7+ Kg8 4. Qe8+ Kg7 5. h6+ Kxh6 6. Qf8+ Kh5 7. Qf7+ Kh4 8. Qxh7+ Kg3 9. Qg6+ Kh4 10. Kf2 Qc5+ 11. Kg2 Qg1+ 12. Kxg1 d6 13. Qg5+ Kh3 14. Qg2+ Kh4 15. Qh2x >With best regards, >Dieter > >P.S. Paul, does your program have a name? Does it play on any ICS? Well, I call it 'Pretz', but should maybe rename it to 'Fluke' ;) And no, it doesn't play on the net; I was going to list the reasons for that, but there are just too many ... Groetjes, Paul PS: I changed my egtb probing after your tips, and now the nps rate is much better; but I still can't solve that WM48 problem after Rb6, I guess probing during extensions is very important there, and I don't do that anymore. Hashing succesful probes is the next step; thanks again ...
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